Home / 931,639.99-1,397,460.17-291,943.60

Finding the Fourth Proportional to 931,639.99, 1,397,460.17 and 291,943.60

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Solution

The fourth proportional to 931,639.99, 1,397,460.17 and 291,943.60 is: 437,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,639.99 : 1,397,460.17 = 291,943.60 : x
  2. Step 2: Convert to fraction form
    931,639.99/1,397,460.17 = 291,943.60/x
  3. Step 3: Cross multiply
    931,639.99x = 1,397,460.17 × 291,943.60
  4. Step 4: Simplify right side
    931,639.99x = 407,979,547,336.35
  5. Step 5: Solve for x
    x = 407,979,547,336.35/931,639.99
  6. Step 6: Final answer
    x = 437,915.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.